Influence of the conditions of zincate on the electroless brass plating of steel / Carlos Dominguez-Rios in Industrial & engineering chemistry research, Vol. 48 N° 8 (Avril 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 3837–3843 Titre : Influence of the conditions of zincate on the electroless brass plating of steel Type de document : texte imprimé Auteurs : Carlos Dominguez-Rios, Auteur ; Georgina Gardea-Hernández, Auteur ; Roal Torres-Sanchez, Auteur Année de publication : 2009 Article en page(s) : pp. 3837–3843 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Zinc flash Steel Electroless brass plating Résumé : In this work, we report that zinc flash film must be applied on a substrate of steel in order to activate the surface for electroless brass plating and the effect of this layer on the final properties of brass film. It was established that the color of the brass film is highly dependent on the conditions of the application of the zinc flash. We found that the mechanism of electroless brass deposition begins with the partial dissolution of the zinc flash film. It was also found that a brass coating with good adhesion properties is obtained when the conditions of the zinc flash bath are as follows: current density of 10 A/dm2, immersion time of 30−45 s, and bath temperature of 40 °C. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8014445 [article] Influence of the conditions of zincate on the electroless brass plating of steel [texte imprimé] / Carlos Dominguez-Rios, Auteur ; Georgina Gardea-Hernández, Auteur ; Roal Torres-Sanchez, Auteur . - 2009 . - pp. 3837–3843. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 3837–3843 Mots-clés : Zinc flash Steel Electroless brass plating Résumé : In this work, we report that zinc flash film must be applied on a substrate of steel in order to activate the surface for electroless brass plating and the effect of this layer on the final properties of brass film. It was established that the color of the brass film is highly dependent on the conditions of the application of the zinc flash. We found that the mechanism of electroless brass deposition begins with the partial dissolution of the zinc flash film. It was also found that a brass coating with good adhesion properties is obtained when the conditions of the zinc flash bath are as follows: current density of 10 A/dm2, immersion time of 30−45 s, and bath temperature of 40 °C. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8014445

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Measurement of mechanical properties of an electroless Ni – B coating using nanoindentation / Carlos Dominguez-Rios in Industrial & engineering chemistry research, Vol. 51 N° 22 (Juin 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 22 (Juin 2012) . - pp. 7762-7768 Titre : Measurement of mechanical properties of an electroless Ni – B coating using nanoindentation Type de document : texte imprimé Auteurs : Carlos Dominguez-Rios, Auteur ; Abel Hurtado-Macias, Auteur ; Roal Torres-Sanchez, Auteur Année de publication : 2012 Article en page(s) : pp. 7762-7768 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Mechanical properties Résumé : Structure and mechanical properties of electroless nickel-boride (Nt—B) thin film coatings on S7 steel substrate were studied in as-plated and annealed samples. The electroless bath does not contain Pb, Cd, or Ta in the stabilizer agents. The mechanical properties of the Ni—B coatings were obtained from nanoindentation measurements. Models by Korsusky and King were used to obtain hardness and elastic modulus, respectively. The structure of the coatings was observed by atomic force and scanning electron microscopy and XRD. Bath composition, plating time, annealing temperature, and time were considered in order to prepare coatings with optimal mechanical properties. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25968332 [article] Measurement of mechanical properties of an electroless Ni – B coating using nanoindentation [texte imprimé] / Carlos Dominguez-Rios, Auteur ; Abel Hurtado-Macias, Auteur ; Roal Torres-Sanchez, Auteur . - 2012 . - pp. 7762-7768. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 22 (Juin 2012) . - pp. 7762-7768 Mots-clés : Mechanical properties Résumé : Structure and mechanical properties of electroless nickel-boride (Nt—B) thin film coatings on S7 steel substrate were studied in as-plated and annealed samples. The electroless bath does not contain Pb, Cd, or Ta in the stabilizer agents. The mechanical properties of the Ni—B coatings were obtained from nanoindentation measurements. Models by Korsusky and King were used to obtain hardness and elastic modulus, respectively. The structure of the coatings was observed by atomic force and scanning electron microscopy and XRD. Bath composition, plating time, annealing temperature, and time were considered in order to prepare coatings with optimal mechanical properties. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25968332

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